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2 years ago

Sophia scored 92% in a math test. if the test had 50 question how many did she get right

Mathematics

1 answer:

german2 years ago

7 0

Answer: 46

Step-by-step explanation:

percentage scored = 92

number of correct question = x

total number of questions = 50

The formula for calculating the percentage scored

= number of correct question / total number of questions x 100

That is

92 = $\frac{x}{50}$ x $\frac{100}{1}$

$92 = \frac{100x}{50}$

cross multiplying :

$100x = 92$ x $50$

$100x = 4600$

dividing through by 100 , we have

$x = 46$

Therefore, she got 46 questions right

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3 0

1 year ago

Square 1 has a area of 24 square units if square 2 is half the size what is the ratio of the area of square one to square two?

Len [333]

Answer:

Step-by-step explanation:

I'm going to guess that 1/2 the size means the sides are 1/2 the size.

Square 1 has an area of 24. The sides are s, so the area is found by using s^2

The second square is made from sides that are 1/2 s

Area = 1/2 s * 1/2 s

Area = 1/4 s^2

Area 1 / area 2 = 24 / x^2 = s^2 / 1/4 s^2 = 1/0.25

8 0

2 years ago

A farmer counted a total of 9 eggs in 8 hens nest. What was the average number of eggs in each nest

maria [59]

Average=total/amount

Since the total eggs were 9, and you counted 8 hen nests,

9/8= 1.125
Because you cannot have 1.125 eggs, the average is about 1 egg.

7 0

2 years ago

The sides of a rectangle are in the ratio of 4:5. If the width is 28 in., find the length, the perimeter, and the area of this r

marin [14]

Assuming the ratio of 4:5 represents the ratio of width:length then we can set up a simple proportion to find the length...
$\frac{4}{5} = \frac{28}{L}$
L = 5(28)÷4
L = 35

Now we can find the perimeter and area of the rectangle:
A = LW
A = 28(35) = 980

P = 2L + 2W
P = 2(35) + 2(28) = 126

3 0

2 years ago

Given:<br> f(x) = x2 - 6x + 13<br> What is f (4)?

lutik1710 [3]

Answer:

Step-by-step explanation:

f(x) = x^2 -6x+13

Let x=4

f (4) = 4^2 -6(4) +13

= 16 -24 +13

= 5

7 0

2 years ago

Read 2 more answers